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83ffe9cd | 1 | // Copyright (C) 2020-2023 Free Software Foundation, Inc. |
bc464641 PP |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-options "-std=gnu++2a" } | |
19 | // { dg-do run { target c++2a } } | |
20 | ||
21 | #include <algorithm> | |
22 | #include <testsuite_hooks.h> | |
23 | #include <testsuite_iterators.h> | |
24 | ||
25 | using __gnu_test::test_container; | |
26 | using __gnu_test::test_range; | |
27 | using __gnu_test::input_iterator_wrapper; | |
28 | using __gnu_test::forward_iterator_wrapper; | |
29 | ||
30 | namespace ranges = std::ranges; | |
31 | ||
32 | void | |
33 | test01() | |
34 | { | |
35 | int x[] = {2,4,6,1,3,5}; | |
36 | test_container<int, forward_iterator_wrapper> cx(x); | |
37 | VERIFY( ranges::is_partitioned(cx, [] (int a) { return a%2==0; }) ); | |
38 | ||
39 | test_range<int, input_iterator_wrapper> rx(x); | |
40 | VERIFY( ranges::is_partitioned(rx, | |
41 | [] (int a) { return a%2==1; }, | |
42 | [] (int a) { return a+1; }) ); | |
43 | } | |
44 | ||
45 | constexpr bool | |
46 | test02() | |
47 | { | |
48 | int x[] = {1,2,3,4,5,6,1}; | |
49 | return (ranges::is_partitioned(x, x+6, [] (int a) { return a<=2; }) | |
50 | && !ranges::is_partitioned(x, x+7, [] (int a) { return a<=2; })); | |
51 | } | |
52 | ||
53 | int | |
54 | main() | |
55 | { | |
56 | test01(); | |
57 | static_assert(test02()); | |
58 | } |